Pretection switch method for Ethernet automatic protection switching (EAPS) loop network and host node IN EAPS loop networks

摘要

Disclose a kind of pretection switch method for being used for Ethernet automatic protection switching (EAPS) loop network and the major network point in EAPS loop networks. Major network point includes: a secondary port component, a state determination component, a count module and a restoration module. Method includes: in the secondary port of major network point and if it is determined that current annular network is after a failed state receives a hello message, and beginning calculates the number for the hello messages that the secondary port in the pre-set duration is received; If count number is greater than or equal to the threshold value of a setting, executes and restore conversion. With the present invention, the number that caused unnecessary conversion is reduced by the link quality in EAPS loop networks can be reduced, and the load of loop network element is mitigated, and increase the intensity of EAPS loop networks.